Shuttle for wrapping machines



w. B. PIERCE. SHUTTLE F 0R WRAPPING MACHINES. APPLICATIOIN FILED APR 29, 1920.

1,%82,89%. Patented Oct. 24 1922 3 SHEETS-SHEET I- ll VEQ 1:!

Wm 1. 07M 5. P/f/Q c i W. B. PIERCE.

SHUTTLE FOR WRAPPING MACHINES.

APPLICATION FILED APRIZQ, I920. 1,432,894. Patented ()0t.24,1922.

3 SHEETS-SHEET 2.

W. B. PIERCE.

SHUTTLE FOR WRAPPING MACHJNES. APPLICATION FILED APR. 29, 1920.

1&32394. Patented Oct. 24, 1922.

Patented Get. 24, 1922.

WILLIAM B. TIPIEIRGIEI, OF CHICAGO, ILLINOIS.

SHUTTLE FOR WRAPPING MACHINES.

Application filed Apri1 29, 1920. Serial'No. 377,493.

To all whom it may concern y Be it known that I, WILLIAM B. PInRon, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a Shuttle for Wrapping Machines; and I do hereby declare that the following is a full, clear,

and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification..

i This invention relates to an improved shuttle for wrapping machines. In the production of tires for use on automobiles and other vehicles, the wrapping of the tire for shipment is an important item. The desired protection is best obtained by covering the tire with a spiral wrap-ping of paper or other flexible material, and it is highly desirable that this wrapping be strong and durable. It is also desirable that it be an economical wrapping which may be easily and quickly applied. The protecting wrapping is ordinarily applied by a machine having a rotatable shuttle through which the tire to be wrapped is rotated, and the wrapping is wound on the tire from supply reels which;

are carried on the shuttle.

It is an object therefore of this invention to provide a shuttle for wrapping machines adapted to app-1y a. spiral wrapping around an object and to introduce one or more rein- 35 i forcing wrappings into said spiral wrapping during theapplication thereof.

It is also; an object of this invention to provide an annular shuttle for a wrapping machine having a pivoted segment removable therefrom and having means whereby said segment is automatically locked in position when the shuttle is rotated.

It is an important object of this invention to provide a shuttle for wrapping machines having main supply reel and auxiliary sources of wrapping material supply.

It is also an important object of this invention to provide a shuttle for wrapping machines adapted to cover an object with a. spiral winding of wrapping material having a plurality of reinforcing cords wound therein.

Other and further important objects of the invention will be apparent from the disclosure in the specification and the accom panyingdrawings.

' 9-9 of Fig. 2.

The invention (in a preferred form) is shown on the drawings and hereinafter more Fig. 7 is a. fragmentary top plan view of a tire protected by the improved wrapping of this invention.

Fig. 8 is a section on line 8-8 of Fig. 7. Fig. 9 is a slightly enlarged section on line Fig. 10 is a section on line 1.0--10 of Fig. 9 v

Fig. 11 is a slightly enlarged fragmentary section on line 11-11 of Fig. 2.

As shown on the drawings The improved shuttle of this invention is adapted to be used in a tire-wrapping machine comprising in general the frame 1, the shuttle frame 2 secured thereon, the tire-sup-' porting and driving rollers 3 which are adjustably mounted on the frame 1, and the shuttle 1 which is constructed according to the principles of this invention, and which is rotated by frictional engagement with the pulley 5 on the main drive shaft 6/ Bolted to the frame 1 is a standard 7 which is provided with a bracket 8 which adjustably carries the upper guide roll 9 and the overrunning follower 10, which support and guide the top portion of the tire casing 11.

The bead-pressing rollers 12 act to press the mounted thereon. Said reel 14 is pivoted on a shaft 16 which is secured in the shuttle 4 and extends from the side face thereof. In

order to removably secure the roll of paper 15 on the reel 14, a sleeve 17 is engaged around said shaft 16, and said sleeve is provided with oppositely positioned longitudinal slots in which the leaf springs 18 are engaged. Said leaf springs rest on the shaft 16 inside the sleeve 17 and said springs.res1liently press the roll of paper on,,the reel. v

A tension mechanism 19 is provided for properly tensioning the strip of wrapping material as it is unwound from the roll 15 on the reel 14.

From the tension mechanism the paper is led to a folder plate 23 which, as clearly shown in Fig. 6, consists of a flat plate one margin of which is turned over and down at an angle so that the edge of a piece of paper drawn therethrough is caused to be folded over in a like manner. The folded strip of paper is led around a roller 24 journaled on a bolt 25 secured at an angle in the side face of the shuttle and from said roller, which "creases thefold and properly positions the Y strip of paper, the paper leads to the tire 11 to which it is applied.

Means are also provided for mtroducmg auxiliary reinforcing windings into the paper wrappings. A cord reel 26 is pivoted on a shaft secured in the side face of the shuttle 4 and is secured thereon by a nut 27. The cord 30 from. said reel 26 is guided through an eye 28 which is supported on a bracket 29 on the side face of the shuttle, and said cord 30 is wound over the folds of the paper wrappings, as clearly shown in Figs. 7 and 8. A cord reel 31, similar to the reel 26, is mounted on the side face of the shuttle in advance of the paper reel 14 and supplies a cord 32 which is guided to the tire casing 11 through an eye 33 similar to the eye 28. Said cord is engaged under the folds of the paper wrapping as shown in Figs. 7 and 8.

The removable segment 13 is pivoted in the shuttle 4 at 34 and is so constructed that when the shuttle is closed a symmetrical annulus is formed. For locking said pivoted segment 13 in position in the shuttle, a slidable bolt 35 is mounted in a recess in said segment, and said slidable bolt is normally held outwardly by the coiled spring '36 secured to the inner end of is closed. Due to the shape of the bevel on the outer end of the bolt 35, the segment 13 cannot be removed or opened from the shuttle without manually retracting the slid- Means are provided for manually retracting the slidable bolt 35 from the recess in the hardened plate 37. A handle 39 which is slidable in a slot 40 in the face of the segsaid bolt and engaged in said recess. The outer end of the slidable bolt 35 is beveled, as shown at Fig.

,struction may be vari'e able bolt 35 against the action of the springment 13 is secured in said bolt 35, as clearly shown in Figs. 9 and 10, and by sliding said handle in the slot the bolt 35 may be retract ed and the segment 13 unlocked. A hand grip 11 is secured in the side face of the shuttle of the segment 13 adjacent the handle 39 whereby the hand of an operator may be grasped around said hand grip and the handle to conveniently retract the bolt 35 and unlock the segment.

As shown in Fig. 1,'a stop 42 is provided on the outer end of one of the arms of the shuttle frame 2, and when'opened the segment 13 may be conveniently rested on said stop.

The operation is as follows- The segment 13 is opened by manually operating the handle 39 and 'thus retractin the bolt 35, and after said segment is opened the tire to be wrapped is placed in the machine, being rotatably supported on the rollguided by the rollers 9 and, 10. The strip of paper or other wrapping material from the reel 15' is engaged on the tire, and the cords 30 and 32 are also engaged thereon respectively over and under the. strip of paper.

The shuttle and the tire are then caused to rotate and the relative rotation thereof causes the reinforcing cords 30 and 32 and the wrapping material to. be' thoroughly wound on the tire, providing a protecting covering therefor. As shown in Figs. 7 and 8, said covering consists of a spirally wound strip of paper which is reinforced with the cords 30 and 32 which preclude tearing of the paper wrapping due to rough handling of the tire during shipment. Since there are two of these reinforcing cords, the paper will be held securely on the tire, even if one of the cords is broken in several places.

When the shuttle is opened to insert the tire, the segment 13 ordinarily rests against the stop 42 on the frame 2; and consequently when theshuttle is started to rotate, the seg-' than one auxiliary winding and the shuttle of this invention may conveniently be used for applying a single auxiliary wrapping either over or between the, folds of the main wrapping.

I am aware that numerous details of conrange without departing from the principles of this invention, and I therefore do not purpose limiting the patent. granted otherwise than necessitated by the prior art.

I claim as my invention- 1. A shuttle for wrapping machines comprising an annular frame, a wrapping material reel rotatably mounted thereon, and

(1 through a wide a rotatable cord reel on the shuttle on the frame on each side of a diameter thereof which. passes through the wrapping material reel.

2, A shuttle for wrapping machines comprising a frame, a paper reel thereon, and a plurality of cord reels rotatably mounted on the same side of the frame as the paper reel.

3. The combination with a wrapping machine shuttle, of means thereon containing a supply of relatively wide wrapping material, and separate means thereon containing a supply of relatively narrow wrapping material, said means being so positioned that the narrow wrapping material is wound on the ,object to be wrapped between the folds ofthe wide wrapping material when the wrapping machine is operated.

4. A shuttle for wrapping machines complrising a rotatable frame, means on said ame for carrying a strip of material to be wound around an article to be Wrape d in v overlapping relation, and means on the frame for applying an auxiliary winding 25 frame for applyin an overlapping strip of 30 material around t e article to be wrapped, means on the frame for applying an auxiliary winding under the overlapping layers of the strip of material, and a second auxil- .iary? reel for aplying an auxiliary winding over said overlapping winding.

In testimony whereof I have hereunto subscribed my name in the presence of two sub scribing witnesses.

WILLIAM B. PIERCE.

Witnesses:

OARLTON'HILL, EARL M. HARDINE. 

